258422543 has 4 divisors (see below), whose sum is σ = 258455088. Its totient is φ = 258390000.

The previous prime is 258422533. The next prime is 258422579. The reversal of 258422543 is 345224852.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 258422543 - 2¹⁰ = 258421519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258422513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4355 + ... + 23147.

It is an arithmetic number, because the mean of its divisors is an integer number (64613772).

Almost surely, 2^258422543 is an apocalyptic number.

258422543 is a deficient number, since it is larger than the sum of its proper divisors (32545).

258422543 is a wasteful number, since it uses less digits than its factorization.

258422543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32544.

The product of its digits is 76800, while the sum is 35.

The square root of 258422543 is about 16075.5262122271. The cubic root of 258422543 is about 636.9570251964.

The spelling of 258422543 in words is "two hundred fifty-eight million, four hundred twenty-two thousand, five hundred forty-three".